The NcSTAR Ruger Mounts adapts a Picantinny style rail to the integral Ruger scope ring slots of your Ruger Mini-14 Ranch or Mini-30 Rifle. This base allows you to attach any Weaver ring enabling you to choose from a large selection of red dot sights, scopes, lasers and lights on your rifle. Easy to install. All steel with blue finish. Rear sight must be removed to install.